The following is a detailed introduction to the ball valve with handle:
1. Structure and working principle
Ball: The core component of the ball valve, usually a hollow sphere with a through hole in the middle. When the through hole is aligned with the pipeline, the fluid can pass through; after rotating 90 degrees, the through hole is perpendicular to the pipeline and the fluid is blocked.
Valve seat: The seals on both sides of the ball, usually made of elastic material (such as PTFE), to ensure sealing performance.
Valve stem: Connects the ball and the handle to transmit rotational force.
Handle: A switch used to manually operate the valve, usually a lever or butterfly handle.
Valve body: The outer shell of the valve, usually made of metal (such as cast iron, stainless steel) or plastic.
2. Main features
Simple operation: The switch can be achieved by rotating the handle 90 degrees, which is fast and convenient to operate.
Good sealing: The sealing performance between the ball and the valve seat is excellent, suitable for a variety of media.
Low flow resistance: Full-diameter design, small flow resistance, suitable for high flow conditions.
Strong durability: Simple structure, low wear and long service life.
Wide range of applications: can be used for a variety of media such as water, oil, and gas.
3. Application areas
Civil fields: used for household water supply, heating systems, etc.
Industrial fields: suitable for fluid control in chemical, petroleum, natural gas, electricity and other industries.
Commercial fields: used for building water supply, air conditioning systems, etc.
Agricultural fields: used for fluid control in irrigation systems.
4. Selection suggestions
Media type: select appropriate valve seat and ball materials according to the corrosiveness, viscosity and other characteristics of the medium.
Pressure level: select the pressure level of the valve according to the working pressure of the system.
Temperature range: consider the temperature range of the medium and select the valve seat material with suitable temperature resistance.
Operation mode: select the handle type (such as lever type, butterfly handle) according to the needs.
Diameter selection: select full-diameter or reduced-diameter design according to the flow requirements.
